{"id":5542,"date":"2025-09-23T00:00:12","date_gmt":"2025-09-22T16:00:12","guid":{"rendered":"https:\/\/www.chinanhd.com\/?p=5542"},"modified":"2025-12-18T16:44:23","modified_gmt":"2025-12-18T08:44:23","slug":"avoid-costly-downtime-how-to-choose-the-best-filter-cloth-for-chemical-filtration","status":"publish","type":"post","link":"https:\/\/www.chinanhd.com\/vi\/avoid-costly-downtime-how-to-choose-the-best-filter-cloth-for-chemical-filtration\/","title":{"rendered":"Tr\u00e1nh th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng t\u1ed1n k\u00e9m: C\u00e1ch ch\u1ecdn v\u1ea3i l\u1ecdc t\u1ed1t nh\u1ea5t cho l\u1ecdc h\u00f3a ch\u1ea5t"},"content":{"rendered":"
\"Qu\u00e1<\/div>\n

L\u1ecdc h\u00f3a h\u1ecdc l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh \u0111\u00f2i h\u1ecfi - b\u00f9n kh\u00e1c nhau v\u1ec1 h\u00f3a h\u1ecdc, t\u1ea3i ch\u1ea5t r\u1eafn c\u00f3 th\u1ec3 thay \u0111\u1ed5i theo gi\u1edd v\u00e0 thi\u1ebft b\u1ecb ch\u1ea1y d\u01b0\u1edbi \u00e1p su\u1ea5t kh\u00f4ng ng\u1eebng. T\u1ea1i trung t\u00e2m c\u1ee7a t\u1ea5t c\u1ea3 l\u00e0 v\u1ea3i l\u1ecdc, \u201ctr\u00e1i tim\u201d th\u1ef1c s\u1ef1 c\u1ee7a h\u1ec7 th\u1ed1ng l\u1ecdc. N\u00f3 x\u00e1c \u0111\u1ecbnh li\u1ec7u c\u00e1c ho\u1ea1t \u0111\u1ed9ng c\u00f3 ch\u1ea1y tr\u01a1n tru ho\u1eb7c b\u1ecb th\u1ea5t b\u1ea1i t\u1ed1n k\u00e9m hay kh\u00f4ng. Khi v\u1ea3i l\u1ecdc c\u00f4ng nghi\u1ec7p suy y\u1ebfu, \u00e1p su\u1ea5t t\u0103ng l\u00ean, r\u00f2 r\u1ec9 lan r\u1ed9ng v\u00e0 s\u1ea3n xu\u1ea5t b\u1ecb nghi\u1ec1n d\u1eebng l\u1ea1i. Nh\u1eefng g\u00ec b\u1eaft \u0111\u1ea7u nh\u01b0 m\u1ed9t v\u1ea5n \u0111\u1ec1 nh\u1ecf c\u00f3 th\u1ec3 nhanh ch\u00f3ng leo thang th\u00e0nh c\u00e1c l\u00f4 h\u01b0 h\u1ecfng, th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng c\u00f3 k\u1ebf ho\u1ea1ch v\u00e0 ki\u1ec3m tra an to\u00e0n k\u00e9o d\u00e0i h\u00e0ng ng\u00e0y.<\/p>\n

H\u01b0\u1edbng d\u1eabn n\u00e0y s\u1ebd ch\u1ec9 ra c\u00e1ch ch\u1ecdn v\u1ea3i l\u1ecdc \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee7a l\u1ecdc h\u00f3a ch\u1ea5t. Ch\u00fang t\u00f4i s\u1ebd bao g\u1ed3m vai tr\u00f2 trung t\u00e2m c\u1ee7a h\u1ecd trong ho\u1ea1t \u0111\u1ed9ng, c\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh \u0111\u1ecbnh h\u00ecnh l\u1ef1a ch\u1ecdn, xem x\u00e9t k\u1ef9 c\u00e1c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u v\u00e0 m\u1ed9t danh s\u00e1ch ki\u1ec3m tra r\u00f5 r\u00e0ng \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n. B\u00e0i h\u1ecdc \u0111\u01b0\u1ee3c r\u00fat ra t\u1eeb c\u00e1c cu\u1ed9c ch\u1ea1y th\u1ef1c t\u1ebf trong c\u00e1c nh\u00e0 m\u00e1y x\u1eed l\u00fd m\u1ecdi th\u1ee9 t\u1eeb dung d\u1ecbch axit \u0111\u1ebfn b\u00f9n kho\u00e1ng ch\u1ea5t. M\u1ee5c ti\u00eau l\u00e0 gi\u1ea3m r\u1ee7i ro, c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 v\u00e0 gi\u1eef cho c\u00e1c \u0111\u01b0\u1eddng l\u1ecdc \u1ed5n \u0111\u1ecbnh.<\/p>\n

T\u1ea1i sao v\u1ea3i l\u1ecdc r\u1ea5t quan tr\u1ecdng trong l\u1ecdc c\u00f4ng nghi\u1ec7p?<\/strong><\/h2>\n

V\u1ea3i l\u1ecdc t\u1ea1o th\u00e0nh b\u1ec1 m\u1eb7t l\u00e0m vi\u1ec7c n\u01a1i x\u1ea3y ra s\u1ef1 t\u00e1ch bi\u1ec7t. Ch\u00fang b\u1eaft \u0111\u01b0\u1ee3c ch\u1ea5t r\u1eafn \u1edf 20-50 micron trong khi l\u1ecdc tho\u00e1t n\u01b0\u1edbc v\u1edbi t\u1ed1c \u0111\u1ed9 l\u00ean \u0111\u1ebfn 100 l\u00edt m\u1ed7i m\u00e9t vu\u00f4ng m\u1ed7i gi\u1edd. Trong m\u1ed9t m\u00e1y \u00e9p l\u1ecdc \u0111i\u1ec3n h\u00ecnh, m\u1ed9t v\u1ea3i tr\u1ea3i d\u00e0i 1m2<\/sup> m\u1ed7i t\u1ea5m, \u0111\u1ed1i m\u1eb7t v\u1edbi c\u00e1c chu k\u1ef3 t\u1ea1o ra b\u00e1nh kh\u00f4 25%. M\u1ed9t s\u1ef1 kh\u00f4ng ph\u00f9 h\u1ee3p \u1edf \u0111\u00e2y n\u00e9m ra s\u1ef1 c\u00e2n b\u1eb1ng - t\u1eafc ngh\u1ebdn tr\u00fang s\u1edbm, ho\u1eb7c r\u00f2 r\u1ec9 \u0111\u1ec3 ph\u1ea1t th\u00f4ng qua v\u1edbi t\u1ed5n th\u1ea5t 5%.<\/p>\n

Ngo\u00e0i c\u01a1 kh\u00ed, v\u1ea3i l\u1ecdc g\u1eafn v\u00e0o h\u1ec7 th\u1ed1ng r\u1ed9ng h\u01a1n. Ch\u00fang \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1ch an to\u00e0n, s\u1ea1ch s\u1ebd v\u00e0 hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed c\u1ee7a m\u1ed9t d\u00e2y chuy\u1ec1n ch\u1ea1y, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng h\u00f3a h\u1ecdc n\u01a1i th\u1ee9c \u0103n mang s\u1ef1 dao \u0111\u1ed9ng pH t\u1eeb 2 \u0111\u1ebfn 12. Hi\u1ec3u n\u1ec1n t\u1ea3ng n\u00e0y gi\u00fap ph\u00e1t hi\u1ec7n l\u00fd do t\u1ea1i sao m\u1ed9t trao \u0111\u1ed5i \u0111\u01a1n gi\u1ea3n c\u00f3 th\u1ec3 chuy\u1ec3n th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng t\u1eeb h\u00e0ng tu\u1ea7n sang hi\u1ebfm.<\/p>\n

Tr\u00e1i tim c\u1ee7a h\u1ec7 th\u1ed1ng l\u1ecdc<\/strong><\/h3>\n

V\u1ea3i l\u1ecdc ng\u1ed3i ngay gi\u1eefa h\u00e0nh \u0111\u1ed9ng. Ho\u1ea1t \u0111\u1ed9ng d\u01b0\u1edbi \u00e1p su\u1ea5t 10-16 bar, ch\u00fang gi\u1eef l\u1ea1i ch\u1ea5t r\u1eafn trong khi cho ph\u00e9p ch\u1ea5t l\u1ecfng r\u00f5 r\u00e0ng \u0111i qua. Trong m\u00e1y \u00e9p l\u1ecdc d\u1ecdc, m\u1ed9t l\u1edbp v\u1ea3i duy nh\u1ea5t qu\u1ea3n l\u00fd 200-300 chu k\u1ef3 tr\u01b0\u1edbc khi hi\u1ec3n th\u1ecb d\u1ea5u hi\u1ec7u m\u00f2n, \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn c\u1ea3 ch\u1ea5t l\u01b0\u1ee3ng b\u00e1nh v\u00e0 \u0111\u1ed9 r\u00f5 r\u00e0ng c\u1ee7a ch\u1ea5t l\u1ecdc. M\u1eadt \u0111\u1ed9 d\u1ec7t c\u0169ng r\u1ea5t quan tr\u1ecdng. N\u1ebfu s\u1ed1 l\u01b0\u1ee3ng s\u1ee3i gi\u1ea3m xu\u1ed1ng d\u01b0\u1edbi 200 s\u1ee3i m\u1ed7i cm, s\u1ef1 \u0111\u1ed9t ph\u00e1 c\u1ee7a ch\u1ea5t r\u1eafn c\u00f3 th\u1ec3 leo l\u00ean 3-5%, bu\u1ed9c ph\u1ea3i t\u00e1i ch\u1ebf \u0103n v\u00e0o n\u0103ng su\u1ea5t.<\/p>\n

\u0110i\u1ec3m c\u1ed1t l\u00f5i n\u00e0y c\u00f3 ngh\u0129a l\u00e0 v\u1ea3i l\u1ecdc x\u00e1c \u0111\u1ecbnh nh\u1ecbp \u0111i\u1ec7u c\u1ee7a m\u00e1y. Do \u0111\u00f3, vi\u1ec7c ch\u1ecdn m\u1ed9t lo\u1ea1i v\u1ea3i ph\u00f9 h\u1ee3p \u0111\u00fang c\u00e1ch \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh ngay c\u1ea3 d\u01b0\u1edbi \u00e1p su\u1ea5t 12 bar, tr\u00e1nh \u0111\u1ec9nh \u00e1p su\u1ea5t tr\u00ean khung v\u00e0 m\u00e1y b\u01a1m.<\/p>\n

\"B\u00f9n<\/div>\n

X\u00e1c \u0111\u1ecbnh hi\u1ec7u qu\u1ea3 v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng<\/strong><\/h3>\n

Hi\u1ec7u qu\u1ea3 b\u1eaft \u0111\u1ea7u t\u1eeb c\u00e1ch m\u1ed9t chi\u1ebfc v\u1ea3i gi\u1ea3i ph\u00f3ng b\u00e1nh. M\u1ed9t t\u1ea5m t\u1ed1t gi\u1ea3i ph\u00f3ng ch\u1ea5t r\u1eafn trong v\u00f2ng d\u01b0\u1edbi 90 gi\u00e2y m\u1ed7i t\u1ea5m, \u0111\u1ea1t m\u1ee5c ti\u00eau \u0111\u1ed9 \u1ea9m 22% m\u00e0 kh\u00f4ng c\u1ea7n s\u1ea5y th\u00eam. Ng\u01b0\u1ee3c l\u1ea1i, s\u1ef1 ph\u00f9 h\u1ee3p h\u00f3a h\u1ecdc k\u00e9m d\u1eabn \u0111\u1ebfn m\u00f9 \u2013 \u0111\u1ed9 th\u1ea5m c\u00f3 th\u1ec3 gi\u1ea3m 30% sau 50 chu k\u1ef3, k\u00e9o d\u00e0i th\u1eddi gian l\u1ecdc t\u1eeb 4 \u0111\u1ebfn 6 gi\u1edd. Ch\u1ea5t l\u01b0\u1ee3ng c\u0169ng b\u1ecb \u1ea3nh h\u01b0\u1edfng. Vi\u1ec7c b\u1eaft kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u c\u00f3 th\u1ec3 cho ph\u00e9p ph\u1ea1t xu\u1ed1ng \u0111\u1ebfn 2 micron v\u00e0o ch\u1ea5t l\u1ecdc, c\u1eaft \u0111\u1ed9 tinh khi\u1ebft d\u00f2ng nhu\u1ed9m \u0111\u1ebfn kho\u1ea3ng 95% v\u00e0 d\u1eabn \u0111\u1ebfn vi\u1ec7c lo\u1ea1i b\u1ecf t\u1ed1n k\u00e9m v\u1edbi m\u1ed7i l\u00f4.<\/p>\n

\u0110\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh<\/strong><\/h3>\n

S\u1ef1 \u1ed5n \u0111\u1ecbnh \u0111\u1ebfn t\u1eeb v\u1ea3i l\u1ecdc ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee7a b\u00e1nh r\u0103ng. Trong m\u00e1y \u00e9p h\u00f3a ch\u1ea5t quy m\u00f4 l\u1edbn x\u1eed l\u00fd c\u00e1c l\u00f4 10 t\u1ea5n, m\u1ed9t v\u1ea3i l\u1ecdc ph\u1ea3i ch\u1ed1ng m\u00e0i m\u00f2n t\u1eeb t\u1ea3i tr\u1ecdng ch\u1ea5t r\u1eafn 40% m\u00e0 kh\u00f4ng b\u1ecb x\u00f3a c\u1ea1nh h\u01a1n 0,2 mm m\u1ed7i chu k\u1ef3. \u0110i\u1ec1u n\u00e0y gi\u1eef d\u00f2ng ch\u1ea3y \u1ed5n \u0111\u1ecbnh \u1edf 40-80 L \/ m\u00b2 \u00b7 h, ng\u0103n ch\u1eb7n qu\u00e1 t\u1ea3i m\u00e1y b\u01a1m c\u00f3 th\u1ec3 x\u1ea3y ra v\u1edbi \u00e1p su\u1ea5t t\u0103ng.<\/p>\n

C\u00e1c l\u1edbp an to\u00e0n tr\u00ean c\u00f9ng. V\u1ea3i \u00e9p l\u1ecdc kh\u00f4ng t\u01b0\u01a1ng th\u00edch suy tho\u00e1i trong \u0111i\u1ec1u ki\u1ec7n axit, cu\u1ed1i c\u00f9ng v\u1ee1 v\u00e0 phun b\u00f9n \u0103n m\u00f2n. OSHA b\u00e1o c\u00e1o c\u00e1c l\u1ed7i l\u1ecdc thu\u1ed9c t\u00ednh \u0111\u1ebfn h\u01a1n 150 v\u1ee5 tr\u00e0n h\u00f3a ch\u1ea5t m\u1ed7i n\u0103m, v\u1edbi m\u1ee9c ph\u1ea1t trung b\u00ecnh 35.000 \u0111\u00f4 la cho m\u1ed7i s\u1ef1 c\u1ed1. Trong m\u1ed9t tr\u01b0\u1eddng h\u1ee3p, s\u1ef1 t\u00edch t\u1ee5 t\u0129nh tr\u00ean m\u1ed9t v\u1ea3i s\u1ea1c \u0111\u00e3 g\u00e2y ra m\u1ed9t v\u1ee5 n\u1ed5 trong m\u1ed9t d\u00e2y chuy\u1ec1n dung m\u00f4i, l\u00e0m b\u1ecb th\u01b0\u01a1ng hai c\u00f4ng nh\u00e2n v\u00e0 d\u1eebng s\u1ea3n xu\u1ea5t trong m\u1ed9t tu\u1ea7n. Ngo\u00e0i an to\u00e0n, vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1ea3i l\u1ecdc k\u00e9m l\u00e0m t\u0103ng chi ph\u00ed - vi\u1ec7c \u0111\u00f3ng c\u1eeda kh\u00f4ng c\u00f3 k\u1ebf ho\u1ea1ch c\u00f3 th\u1ec3 v\u01b0\u1ee3t qu\u00e1 260.000 \u0111\u00f4 la m\u1ed7i gi\u1edd trong c\u00e1c nh\u00e0 m\u00e1y h\u00f3a ch\u1ea5t.<\/p>\n

4 y\u1ebfu t\u1ed1 c\u1ed1t l\u00f5i trong l\u1ef1a ch\u1ecdn v\u1ea3i l\u1ecdc<\/strong><\/h2>\n

S\u1ef1 l\u1ef1a ch\u1ecdn ph\u1ee5 thu\u1ed9c v\u00e0o th\u00e0nh ph\u1ea7n c\u1ee7a b\u00f9n v\u00e0 gi\u1edbi h\u1ea1n c\u1ee7a b\u00e1o ch\u00ed. M\u1ed9t v\u1ea3i l\u1ecdc cho th\u1ee9c \u0103n axit 90 \u00b0 C y\u00eau c\u1ea7u c\u00e1c \u0111\u1eb7c t\u00ednh kh\u00e1c nhau so v\u1edbi m\u1ed9t b\u00f9n trung l\u1eadp trong b\u0103ng t\u1ea3i b\u0103ng ch\u00e2n kh\u00f4ng. Tr\u1ecdng l\u01b0\u1ee3ng c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y so v\u1edbi th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt th\u1ef1c t\u1ebf c\u1ee7a b\u1ea1n - k\u00edch th\u01b0\u1edbc h\u1ea1t 10-100 micron, ph\u1ea1m vi pH v\u00e0 \u00e1p su\u1ea5t chu k\u1ef3 l\u00ean \u0111\u1ebfn 15 bar. B\u1ecf qua ngay c\u1ea3 m\u1ed9t y\u1ebfu t\u1ed1 c\u00f3 th\u1ec3 gi\u1ea3m tu\u1ed5i th\u1ecd ph\u1ee5c v\u1ee5 xu\u1ed1ng c\u00f2n 100 chu k\u1ef3, trong khi s\u1ef1 s\u1eafp x\u1ebfp \u0111\u00fang \u0111\u1eafn tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c y\u1ebfu t\u1ed1 c\u00f3 th\u1ec3 k\u00e9o d\u00e0i n\u00f3 \u0111\u1ebfn kho\u1ea3ng 250 chu k\u1ef3 v\u1edbi m\u00e0i m\u00f2n \u0111\u1ed3ng nh\u1ea5t. Trong s\u1ed1 \u0111\u00f3, x\u00e2y d\u1ef1ng v\u00e0 v\u1eadt li\u1ec7u c\u1ee7a v\u1ea3i t\u1ea1o th\u00e0nh n\u1ec1n t\u1ea3ng, thi\u1ebft l\u1eadp s\u00e2n kh\u1ea5u cho t\u1ea5t c\u1ea3 c\u00e1c kh\u00eda c\u1ea1nh hi\u1ec7u su\u1ea5t kh\u00e1c.<\/p>\n

X\u00e2y d\u1ef1ng v\u00e0 lo\u1ea1i v\u1eadt li\u1ec7u<\/strong><\/h3>\n

X\u00e2y d\u1ef1ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn gi\u1eef v\u00e0 d\u00f2ng ch\u1ea3y t\u1eeb \u0111\u1ea7u. V\u1ea3i d\u1ec7t \u0111\u01a1n s\u1ee3i c\u00f3 d\u1ec7t m\u1edf v\u00e0 kh\u1ea3 n\u0103ng th\u1ea5m 20-50 L \/ m\u00b2 \u00b7 h, l\u00e0m cho ch\u00fang ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c h\u1ea1t th\u00f4 l\u1edbn h\u01a1n 50 micron. C\u00e1c phi\u00ean b\u1ea3n \u0111a s\u1ee3i ch\u1eb7t ch\u1ebd h\u01a1n, v\u1edbi \u0111\u1ed9 th\u1ea5m th\u1ea5p nh\u01b0 5 L \/ m\u00b2 \u00b7 h, l\u00e0m cho ch\u00fang ph\u00f9 h\u1ee3p cho c\u00e1c c\u1eaft m\u1ecbn h\u01a1n nh\u01b0ng d\u1ec5 b\u1ecb t\u1eafc ngh\u1ebdn h\u01a1n v\u1edbi v\u1eadt li\u1ec7u th\u1ee9c \u0103n nh\u1edbt nh\u1edbt, v\u00e0 c\u00f3 th\u1ec3 t\u0103ng t\u1ed1c \u0111\u1ed9 \u0111\u00f3ng g\u00f3i l\u00ean \u0111\u1ebfn 20%.<\/p>\n

Lo\u1ea1i v\u1eadt li\u1ec7u kh\u00f3a trong \u0111\u1ed9 b\u1ec1n. Polypropylene th\u1ed1ng tr\u1ecb v\u00ec m\u1eadt \u0111\u1ed9 0,91 g \/ cm\u00b3, l\u00e0m gi\u1ea3m t\u1ea3i tr\u1ecdng b\u00e1o ch\u00ed 10% so v\u1edbi c\u00e1c l\u1ef1a ch\u1ecdn n\u1eb7ng h\u01a1n. Nylon th\u00eam kh\u1ea3 n\u0103ng ch\u1ed1ng k\u00e9o d\u00e0i, v\u1edbi \u0111\u1ed9 k\u00e9o d\u00e0i d\u01b0\u1edbi 25%, l\u00e0m cho n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi m\u00f4i tr\u01b0\u1eddng rung cao. Phong c\u00e1ch d\u1ec7t c\u0169ng quan tr\u1ecdng: d\u1ec7t \u0111\u01a1n gi\u1ea3n cung c\u1ea5p l\u1ecdc \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u1ed3ng nh\u1ea5t, trong khi d\u1ec7t twill c\u1ea3i thi\u1ec7n s\u1ef1 gi\u1ea3i ph\u00f3ng b\u00e1nh, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi x\u1eed l\u00fd b\u00e1nh c\u00f3 \u0111\u1ed9 \u1ea9m kho\u1ea3ng 30%.<\/p>\n

\"C\u00e1c<\/div>\n

T\u01b0\u01a1ng th\u00edch h\u00f3a ch\u1ea5t v\u00e0 thi\u1ebft b\u1ecb<\/strong><\/h3>\n

Trong ph\u1ea1m vi pH \u0111\u1ea7y \u0111\u1ee7 1-14, v\u1ea3i l\u1ecdc polypropylene ch\u1ecbu \u0111\u01b0\u1ee3c h\u1ea7u h\u1ebft th\u1ee9c \u0103n v\u00f4 c\u01a1, ch\u1ec9 m\u1ea5t \u22481% \u0111\u1ed9 b\u1ec1n k\u00e9o sau 200 gi\u1edd trong 30% HCl. Nylon ho\u1ea1t \u0111\u1ed9ng kh\u00e1c nhau: n\u00f3 dung n\u1ea1p c\u00e1c c\u0103n c\u1ee9 l\u00ean \u0111\u1ebfn pH 13, nh\u01b0ng l\u00e0m m\u1ec1m l\u00ean \u22485% khi ti\u1ebfp x\u00fac v\u1edbi axit d\u01b0\u1edbi pH 4.<\/p>\n

T\u01b0\u01a1ng th\u00edch thi\u1ebft b\u1ecb c\u0169ng r\u1ea5t quan tr\u1ecdng. \u0110\u1ed1i v\u1edbi m\u00e1y \u00e9p l\u1ecdc t\u1ea5m v\u00e0 khung, v\u1ea3i y\u00eau c\u1ea7u ni\u00eam phong c\u1ea1nh ch\u00ednh x\u00e1c \u0111\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p su\u1ea5t l\u00ean \u0111\u1ebfn 16 bar, v\u1edbi s\u1ef1 sai s\u1eafp x\u1ebfp \u0111\u01b0\u1ee3c ph\u00e9p kh\u00f4ng qu\u00e1 \u22482%. Trong m\u00e1y \u00e9p l\u1ecdc d\u1ecdc, v\u1ea3i ma s\u00e1t th\u1ea5p l\u00e0m gi\u1ea3m m\u00e0i m\u00f2n t\u1eeb c\u01a1 ch\u1ebf c\u1ea1o, gi\u1eef t\u1ef7 l\u1ec7 r\u00e1ch d\u01b0\u1edbi 0,5 m\u1ed7i 100 chu k\u1ef3. Lo\u1ea1i thi\u1ebft b\u1ecb c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1ch v\u1ea3i \u00e9p l\u1ecdc ph\u1ea3n \u1ee9ng v\u1edbi x\u1eed l\u00fd nhi\u1ec7t v\u00e0 m\u00f2n k\u00e9o d\u00e0i.<\/p>\n

Kh\u00e1ng nhi\u1ec7t \u0111\u1ed9<\/strong><\/h3>\n

Nhi\u1ec7t \u0111\u1ed9 cao c\u00f3 th\u1ec3 g\u00e2y bi\u1ebfn d\u1ea1ng v\u1ea3i. S\u1ee3i polyester v\u1eabn m\u1ea1nh \u1edf 150 \u00b0 C, v\u1edbi s\u1ef1 co l\u1ea1i kh\u00f4 d\u01b0\u1edbi 3%, l\u00e0m cho n\u00f3 th\u00edch h\u1ee3p cho k\u00edch th\u01b0\u1edbc trung l\u1eadp \u1edf 100-120 \u00b0 C. Ngo\u00e0i ph\u1ea1m vi n\u00e0y, \u0111\u1ed9 th\u1ea5m t\u0103ng 25%, cho ph\u00e9p b\u1ed9t m\u1ecbn th\u00e2m nh\u1eadp. PTFE gi\u1eef t\u1ed1i \u0111a 260 \u00b0 C, v\u00e0 v\u1eabn v\u00f4 l\u1ef1c ngay c\u1ea3 trong h\u01a1i n\u01b0\u1edbc \u1edf 200 \u00b0. Tuy nhi\u00ean, \u0111\u1ed9 k\u00e9o d\u00e0i th\u1ea5p c\u1ee7a n\u00f3 (\u224810%) l\u00e0m cho n\u00f3 t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee9ng, l\u00e0m t\u0103ng nguy c\u01a1 v\u1ebft n\u1ee9t trong l\u1eafp \u0111\u1eb7t linh ho\u1ea1t. V\u1ea3i acrylic \u0111\u01b0\u1ee3c gi\u1edbi h\u1ea1n \u1edf \u2248120 \u00b0 C, ph\u00f9 h\u1ee3p v\u1edbi axit nh\u1eb9 nh\u01b0ng kh\u00f4ng cho nhi\u1ec7t \u0111\u1ed9 cao k\u00e9o d\u00e0i.<\/p>\n

X\u1ebfp h\u1ea1ng l\u1ecdc v\u00e0 kh\u1ea3 n\u0103ng th\u1ea5m<\/strong><\/h3>\n

M\u1ed9t v\u1ea3i 10 micron c\u00f3 th\u1ec3 ch\u1ee5p c\u00e1c h\u1ea1t xu\u1ed1ng \u0111\u1ebfn k\u00edch th\u01b0\u1edbc \u0111\u00f3, nh\u01b0ng v\u1edbi t\u1ef7 l\u1ec7 d\u00f2ng ch\u1ea3y \u224815 L \/ m\u00b2 \u00b7 h, n\u00f3 ph\u00f9 h\u1ee3p nh\u1ea5t \u0111\u1ec3 s\u1ea3n xu\u1ea5t ch\u1ea5t l\u1ecdc r\u00f5 r\u00e0ng trong c\u00e1c \u1ee9ng d\u1ee5ng d\u01b0\u1ee3c ph\u1ea9m v\u00e0 h\u00f3a h\u1ecdc m\u1ecbn. V\u1ea3i l\u1ecdc 50 micron th\u00f4 h\u01a1n cho ph\u00e9p t\u1ef7 l\u1ec7 d\u00f2ng ch\u1ea3y cao h\u01a1n \u224880 L \/ m\u00b2 \u00b7 h, l\u00e0m cho ch\u00fang ph\u00f9 h\u1ee3p cho b\u00f9n khai th\u00e1c m\u1ecf v\u00e0 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 kh\u00f4 b\u00e1nh \u224818% nhanh h\u01a1n. \u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a c\u00e1c h\u1ea1t, ch\u1eb3ng h\u1ea1n nh\u01b0 h\u00ecnh d\u1ea1ng, c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ef1 t\u00edch l\u0169y. C\u00e1c h\u1ea1t b\u1ecb x\u01b0\u01a1ng ho\u1eb7c b\u1ea5t th\u01b0\u1eddng c\u00f3 th\u1ec3 g\u00e2y t\u1eafc ngh\u1ebdn nhanh h\u01a1n \u0111\u1ebfn \u224820% so v\u1edbi c\u00e1c h\u1ea1t tr\u00f2n. Ch\u1ecdn v\u1ea3i l\u1ecdc c\u00f4ng nghi\u1ec7p ph\u00f9 h\u1ee3p \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 m\u1edd l\u1ecdc d\u01b0\u1edbi 5% v\u00e0o cu\u1ed1i ch\u1ea1y l\u1ecdc.<\/p>\n

Ph\u00e2n t\u00edch v\u1eadt li\u1ec7u v\u1ea3i l\u1ecdc h\u00f3a h\u1ecdc ph\u1ed5 bi\u1ebfn<\/strong><\/h2>\n

M\u1ed7i v\u1eadt li\u1ec7u giao d\u1ecbch s\u1ee9c m\u1ea1nh cho gi\u1edbi h\u1ea1n, \u0111i\u1ec1u ch\u1ec9nh cho b\u00f9n t\u1eeb \u0103n m\u00f2n cao \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 cao. PP (v\u1ea3i l\u1ecdc polypropylene) d\u1eabn theo kh\u1ed1i l\u01b0\u1ee3ng; Nh\u1eefng ng\u01b0\u1eddi kh\u00e1c l\u1ea5p \u0111\u1ea7y c\u00e1c niche. NHD ch\u1ebf t\u1ea1o c\u00e1c xoay tr\u1ed9n t\u1eeb \u0111\u1ea7u \u0111\u1ebfn cu\u1ed1i n\u00e0y \u0111\u1ec3 l\u1ecdc v\u1eefng ch\u1eafc v\u1edbi k\u1ebft th\u00fac l\u1ecbch n\u00e2ng s\u1ef1 gi\u1ea3i ph\u00f3ng b\u00e1nh l\u00ean \u0111\u1ebfn 20%. C\u00e1c d\u00f2ng c\u1ee7a ch\u00fang t\u00f4i bao g\u1ed3m v\u1ea3i l\u1ecdc polypropylene \u0111\u1ebfn h\u1ed7n h\u1ee3p nylon, t\u1ea5t c\u1ea3 \u0111\u1ec1u \u0111\u01b0\u1ee3c ki\u1ec3m tra \u0111\u1ec3 t\u00e1i t\u1ea1o 95% sau khi l\u00e0m s\u1ea1ch. Ti\u1ebfp theo, h\u00e3y s\u1eed d\u1ee5ng b\u1ea3ng so s\u00e1nh \u0111\u1ec3 hi\u1ec3u tr\u1ef1c quan c\u00e1c lo\u1ea1i v\u1ea3i \u00e9p l\u1ecdc ph\u1ed5 bi\u1ebfn v\u00e0 l\u1ee3i th\u1ebf, nh\u01b0\u1ee3c \u0111i\u1ec3m t\u01b0\u01a1ng \u1ee9ng c\u1ee7a ch\u00fang v\u00e0 m\u00f4i tr\u01b0\u1eddng \u00e1p d\u1ee5ng.<\/p>\n

\"Ph\u00e2n<\/div>\n

Danh s\u00e1ch ki\u1ec3m tra l\u1ef1a ch\u1ecdn c\u1ee7a b\u1ea1n: H\u01b0\u1edbng d\u1eabn t\u1eebng b\u01b0\u1edbc<\/strong><\/h2>\n

B\u00e2y gi\u1edd b\u1ea1n \u0111\u00e3 hi\u1ec3u vai tr\u00f2 v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a v\u1ea3i l\u1ecdc trong m\u1ed9t h\u1ec7 th\u1ed1ng l\u1ecdc v\u00e0 c\u00e1c v\u1eadt li\u1ec7u ph\u1ed5 bi\u1ebfn kh\u00e1c nhau m\u00e0 n\u00f3 \u0111\u1ebfn t\u1eeb, b\u01b0\u1edbc ti\u1ebfp theo l\u00e0 ch\u1ecdn v\u1ea3i l\u1ecdc ph\u00f9 h\u1ee3p cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n. N\u1ebfu b\u1ea1n v\u1eabn b\u1ed1i r\u1ed1i, h\u00e3y l\u00e0m theo c\u00e1c b\u01b0\u1edbc n\u00e0y \u0111\u1ec3 gi\u00fap b\u1ea1n ch\u1ecdn v\u1ea3i l\u1ecdc ph\u00f9 h\u1ee3p cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n.<\/p>\n